Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed... – Blowout type
Patent
1991-10-15
1993-07-13
Maples, John S.
Chemistry: electrical current producing apparatus, product, and
Means externally releasing internal gas pressure from closed...
Blowout type
429174, 429185, 429206, 429224, 429229, H01M 212, H01M 450, H01M 1026, H01M 442
Patent
active
052272613
ABSTRACT:
Electrochemical cells are comprised of a seal member that has a centrally located cylindrical hub joining a base, which base has a ventable diaphragm portion and a nonventable diaphragm portion, which hub has an end extending above the base and an end extending below the base, into which a current collector is inserted in an interference fit with the end extending above the base, which ventable diaphragm portion joins the hub at an interface forming an arc of between about 135 degrees and 250 degrees, and which interface is the thinnest portion of the base.
REFERENCES:
patent: 3219488 (1965-11-01), Southworth, Jr.
patent: 4075398 (1978-02-01), Levy
patent: 4476200 (1984-10-01), Markin et al.
patent: 4774155 (1988-09-01), Heinz-Werner
Eveready Battery Company Inc.
Maples John S.
Welsh Robert W.
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